Disclaimer: There are several assumptions I've made in the following that could be wrong. Please let me know if that is the case. I'm also ignoring the political aspects of your post; I'm not an American.
I'm looking forward to owning an electric vehicle. I'm in a location where electricity is relatively inexpensive and cleanly generated; the vast majority of power generation in my area is hydroelectric, and we produce more than we use. However, I have some valid concerns before diving in.
Mainly, I need to know how they'll perform in low-temperature conditions. Where I live, temperatures routinely hit -30 and -40 in the depths of winter. Many electronic devices cannot operate properly at this temperature, and batteries' output are greatly reduced. I'll need to know that I can reach my destination, because being stranded in those temperatures can be life-threatening. One option is an internal heating system that could be activated while charging upon reaching a low temperature threshold. It could function similar to a block heater for an ICE, but would probably have to heat both the motor itself and the batteries. Electric heat can be costly. Another concern is heat generation. Combustion-based engines have a useful side effect - they generate heat, which is used to heat the interior of the vehicle. An electric motor won't produce nearly as much heat. That means there'll be an even bigger drain on the batteries. As it currently stands, even with low electricity costs, it appears gas would be a cheaper and more efficient way to go.
Also, cost is a major issue - not just the initial purchase price, but maintenance and energy usage over its life. This can't be known until the vehicles have been in use for a number of years. Mechanics are currently familiar with ICEs, and there won't be an immediate uptake; supply will eventually follow demand, so many won't be familiar with electric vehicles until enough people have them. Until then, those that maintain electric vehicles will be in higher demand, thus a higher cost. I'm sure that initial costs will be higher - the manufacturers have to recover that initial R&D investment somehow.